ing machine including apparatus for selectively connecting a rotary brush to a motorUS5940657Mar 3, 1997Aug 17, 1999Canon Kabushiki KaishaDeveloping cartridgeUS5950049Mar 3, 1997Sep 7, 1999Canon Kabushiki KaishaDeveloping cartridgeUS5963759Jul 29, 1997Oct 5, 1999Canon Kabushiki KaishaProcess cartridge and image forming apparatus to which process cartridge can detachably be mountedEP0645682A2Sep 9,